Asus Z97-K/USB3.1 Manual page 54

PLL Selection [LC PLL]
By default, this item is set to [LC PLL] for better stability. Set this item to [SB PLL] when
BCLK (Base Clock) frequency is below 100MHz, which may affect the functionality of other
devices that need precise clock jitters. Configuration options: [Auto] [LC PLL] [SB PLL]
Filter PLL [Auto]
Set this item to high BCLK (base clock) mode when using a very high BCLK to improve
overclocking capability. Configuration options: [Auto] [Low BCLK mode] [High BCLK mode]
BCLK Frequency [Auto]
This item allows you to set the BCLK (base clock) frequency to enhance the system
performance. Use the <+> or <‑> to adjust the value. The values range from 80.0 MHz to
300.0 MHz.
We recommend you to set the value based on the CPU specification, as high BCLK
frequencies may damage the CPU permanently.
Initial BCLK Frequency [Auto]
This item allows you to start overclocking the system from the initial BCLK (base clock)
frequency to the assigned BCLK frequency. Use the <+> or <‑> to adjust the value. The value
ranges depend on the value you set on BCLK Frequency.
2.5.2 ASUS MultiCore Enhancement [Auto]
[Auto]
[Disabled]
2.5.3 CPU Core Ratio [Auto]
This item allows you to set the CPU core ratio limit per core or synchronize automatically to
all cores. Configuration options: [Auto] [Sync All Cores] [Per Core]
When the CPU Core Ratio is set to [Sync All Cores] or [Per Core], the following items
appear.
1-Core Ratio Limit [Auto]
Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 1‑Core Limit
value that must be higher than or equal to the 2‑Core Ratio Limit.
2-Core Ratio Limit [Auto]
Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 2‑Core Limit
value that must be higher than or equal to the 3‑Core Ratio Limit.
If you assign a value for 2‑Core Ratio Limit, do not set the 1‑Core Ratio Limit to [Auto].
2-20
This item allows you to maximize the oveclocking performance optimized
by ASUS core ratio settings.
This item allows you to set to default core ratio settings.
Chapter 2: Getting started